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參數(shù)資料
| 型號(hào)： | LB8503V |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Monolithic Digital IC DC Fan Motor Speed Control IC |
| 中文描述： | 單片數(shù)字集成電路直流風(fēng)扇電機(jī)轉(zhuǎn)速控制IC |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 171K |
| 代理商： | LB8503V |
LB8503V
No.A0366-9/20
Pin Setting Procedures (Provided for reference purposes)
[RC pin]
The slope in the speed control diagram is determined by the RC pin time constant.
CTL Duty(%)
(RPM)
0%
100%
Motor
full speed
I LB01771
1. Determine the FG signal frequency (fFG (Hz)) at the motor's highest speed.
(When 2 FG pulses are created on each motor revolution.)
fFG(Hz)=2rpm/60.........................................................(1)
2. Determine the time constant for the RC pin.
(Let DUTY be the control duty at the highest motor speed. For example, 100% = 1.0, 60% = 0.6)
R×C=DUTY/(3×0.85×fFG).............................................(2)
3. Determine the resistor and capacitor values
The range of capacitors that can be used is from 0.01 to 0.015 μF due to the charge capabilities of the RC pin circuit.
Therefore, an appropriate resistor value can be determined from either (3) or (4) below from the result obtained in
step 2 above.
R=(R×C)/0.01
μ
F.......................................................(3)
R=(R×C)/0.015
μ
F.....................................................(4)
Note that the temperature characteristics of the curve are determined by the temperature characteristics of the
capacitor connected to the RC pin.
A capacitor with excellent temperature characteristics must be used to minimize motor speed variation with
temperature.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB8503V-MPB-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| LB8503V-TLM-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BRUSHLESS MOTOR DRIVER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| LB8505AE-R2 | 制造商:Black Box Corporation 功能描述:10/100 ETHERNET SWITCH 5 PORT |
| LB8505AE-R2-W1 | 制造商:Black Box Corporation 功能描述:1 YEAR WARRANTY FOR LB8505AE-R2 |
| LB8508A-W1 | 制造商:Black Box Corporation 功能描述:1 YEAR WARRANTY FOR LB8508A |
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